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Finding the Fourth Proportional to 195,468.80, 293,115.60 and 77,079.20

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Solution

The fourth proportional to 195,468.80, 293,115.60 and 77,079.20 is: 115,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,468.80 : 293,115.60 = 77,079.20 : x
  2. Step 2: Convert to fraction form
    195,468.80/293,115.60 = 77,079.20/x
  3. Step 3: Cross multiply
    195,468.80x = 293,115.60 × 77,079.20
  4. Step 4: Simplify right side
    195,468.80x = 22,593,115,955.52
  5. Step 5: Solve for x
    x = 22,593,115,955.52/195,468.80
  6. Step 6: Final answer
    x = 115,584.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.